Kinetic theory for transverse optomechanical instabilities

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We investigate transverse symmetry-breaking instabilities emerging from the optomechanical coupling between light and the translational degrees of freedom of a collisionless, damping-free gas of cold, two-level atoms. We develop a kinetic theory that can also be mapped on to the case of an electron plasma under ponderomotive forces. A general criterion for the existence and spatial scale of transverse instabilities is identified; in particular, we demonstrate that monotonically decreasing velocity distribution functions are always unstable.
Original languageEnglish
Article number043901
Number of pages5
JournalPhysical Review Letters
Issue number4
Early online date29 Jan 2014
Publication statusPublished - 29 Jan 2014


  • transverse symmetry-breaking instabilities
  • optomechanics
  • kinetic theory


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